class_name Bud extends VineNode
signal opened
var img_path
@export var depth : int

# Triggers when a bud is hit. Spreads the vine, then removes the bud
func _on_opened():
	$AnimatedSprite2D.play("open")
	opened.emit()
	spread()
	await $AnimatedSprite2D.animation_finished
	queue_free()

# Spread in all directions where the given vine is not yet present
func spread():
	for dir in [Vector2.UP, Vector2.DOWN, Vector2.RIGHT, Vector2.LEFT]:
		if not vine.vine_locations.has(Global.vec_mod(location + dir, Grid.num_collumns)):
			grow_to_next_bud(dir)

# Grow a vine
func grow_to_next_bud(dir):
	var target_offset = vine.random_offset()
	var target = Global.vec_mod(location + dir, Grid.num_collumns)
	var pos1 = Grid.get_world_position(location, offset)
	var pos2 = Grid.get_world_position(target, target_offset)
	var num_seg = floor((pos1-pos2).length() / 96)
	await vine.grow_vine_sequence(location, offset, target, target_offset, num_seg, depth, true, false)